ConfigParser: Added the ability to not wrap exception messages for ConfigParser
ConfigParser: Added the ability to not wrap exception messages for ConfigParser

Both AgendaParser and ConfigParsers wrap exceptions with a a message
saying what source of configuration caused the exception. AgendaParser
uses ConfigParser within its load method, this leads to the "Error in foo"
message appearing twice. This lets AgendaParser turn of the wrapping
in ConfigParser

lisatn/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,lisatn/workload-automation,lisatn/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,setrofim/workload-automation,lisatn/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,ARM-software/workload-automation